Tohutoro APA (7th ed.)
Penrose, J. M., Myers, R. J., & Rasberry, R. W. (1989). Advanced business communication. PWS-KENT Pub. Co..
Tohutoru Kātū Chicago (17th ed.)
Penrose, John M., Robert J. Myers, me Robert W. Rasberry. Advanced Business Communication. Boston: PWS-KENT Pub. Co., 1989.
Tohutoro MLA (9th ed.)
Penrose, John M., et al. Advanced Business Communication. PWS-KENT Pub. Co., 1989.
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